STA 106 Study Guide - Spring 2019, Comprehensive Final Exam Notes - Karishma (1984 Film), Analysis Of Variance, Variance
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A person, place of thing from which we measure data. Variables that have an e ect on the response variable. Let yi be drawn from a population with mean y standard deviation y . The "true" average of yi is e[yi] = yi = y . The "true" stdev of yi is {yi} = y. A linear combo of rv y is y = a + by with a, b r then: y = e [y ] = a + b y, 2. Y = 2 [y ] = b2 2. Say y has population mean 4 and population variance 3. y = 4, 2. Given the linear combo of y, y = 4 + 3y , nd new mean and stdev. Y = 4 + 3 y = 4 + 3 4 = 16. Given the linear combo of y, y = 1. 4 y , nd new mean and stdev.
